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Finding the Fourth Proportional to 17,888.68, 24,685.92 and 9,930.64

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Solution

The fourth proportional to 17,888.68, 24,685.92 and 9,930.64 is: 13,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.68 : 24,685.92 = 9,930.64 : x
  2. Step 2: Convert to fraction form
    17,888.68/24,685.92 = 9,930.64/x
  3. Step 3: Cross multiply
    17,888.68x = 24,685.92 × 9,930.64
  4. Step 4: Simplify right side
    17,888.68x = 245,146,984.59
  5. Step 5: Solve for x
    x = 245,146,984.59/17,888.68
  6. Step 6: Final answer
    x = 13,704.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.